Combination harrow and smoothing blade



Feb. 15,1927. 1,618,076

. A. FROMHERZ v COMBINATION HARROW ANQSMOOTHING BLADE Filed Oct. 15,1925 Z'Sheets-Sheet 2 30 2 33 ma: I il NvsNzon WITNESSES B0!" 05Patented Feh.'15, 1927.

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" COMBINATION rmnnow Ann s rroornine BLADE.

Applicatioujiled Cowl 1315 1 923. ;Seria1 no. 668,668.

' This'invention relates to a-' combination harrow and smoothing blade,.whlch is adapted to break up clods and the like,-and to leave a smooth,finely pulverized surface I The general object of the invention is toprovide a pulverizer of the character de scribed, which is simple inconstruction and easily adjustable to adapt it for u'seunder varyingconditions and with any kind of soil, when preparing the seed bed."

The invention consists further in specific features ofconstruction andvarious com= 'bination's thereof, which will be moreiclearly apparentfrom the detailed description which "follows, and will be subsequentlypointed, out-in the claims. Q

In describing'the invention, reference will be'hadto the accompanyingdrawings, in which---" v v Figure .1 is a plan view of the invention.

Figure 2 is aside elevation thereof.

Figure 3 is a vertical longitudinal section through the rear part of theinvention, showing the smoothing blade in elevated or inoperativeposition.

Figure 4 is a similar View showing the smoothing blade in lowered or.operative position.

Figure 5 is a detail perspective View of one of the brackets whichsupport the smoothing,

' blades in inoperative position.

The device, which constitutes my invention, is made up. of one or moresections, each comprising a framewith side bars 10 connected at theirrear ends by a transverse bar 11. The means for pulverizing the soilpreferably includes disks mounted in the frame, and also rearwardly anddownwardly inclined teeth 20.

For the purpose of attaching a smoothing blade 'or drag to the rear ofthe harrow a number of brackets 25 are secured in spaced relation on therear frame bar 11. Each of these brackets has a downturned flange 26 atits front end, which is secured to the bar 11 by a bolt 27 or the like.The rear portion of the bracket 25 is bent downwardly, as shown at 28 inFigures 3, 4. and 6, and is provided with a hole 29, through which a.clevis 30 is inserted. The eyes of the clevis are connected by a pin orbolt 31, which passes neaththe bracket 25, as shown in Figure 3, inwhich positlon the engagement ofthe provided. This clamp includes spacedarms .34, which snugly receive the blade 32"be- 15 rotatably through anopening in the forward upper portion of a smoothing blade 32, which; is7 preferably made of'iron in order to' give suflicient weight thereto.When in operative position, the blade is held so asto drag; over theground, as shown in Figure l.

When itis notdesired to use the smoothing I blade,-the clevis 3Ois'drawn inwardly undere clevis with the bracket will serve to supporttheblade 32 above the ground.- In orderitoprevent the clevis and bladefr m b'eing jarred loose from this position, a clamp 33 is tween'them,-andtheforward portions of the arms are'spread outwardly, as shown at35,i so as-to pass on either side of the bar'll, The forwardtends' of theclamp arms may be received by washer plates '35 and their threaded endsprovided with nuts 36, by f 7 means of which the blade 32 and clevises30i are firmly clamped to the bracket 25. By this construction theblademay be secured in a substantially horizontal position andmaybe'used by the driver to stand on when driving the machine to andfrom the field."

. From the foregoing. description it will be understood that the harrowteeth 20 serve to smooth out and partially pulverize the large lumps,while the disks 15 thoroughly pulverlze the ground including any clodsor lumps, which may escape the teeth 20. When the smoothing blades 32are in operation, 'theyserve to complete the pulveriza tion and tosmooth out the dirt left by the disks 15, leaving. a perfectlysmoothseed bed and providing a dust'mulch, which will cover any clover seedorgrass seed subsequently sown, and insure its. germination. l/Vith theblades 32 and the harrow teeth 20 raised, the machine maybe used whenthegrainis four or fiye inches highto loosen the topcrust of the groundwithout injur- 100 ing the grain. WVhile I have shown and describedspecifv ically the preferred form of the invention,

it is to be understood that this is merely illustrative and thatvariousmodifications 1 may be made in the size, proportion and arrangement ofthe parts, as well as in the minor details of construction withoutsacrificing'any of the salient features of the invention as expressed inthe claims.

What is claimed is: I 1. In a device of the character. described, the:combinationof a frame having earth working'elements mounted therein,brackets securedto and extending rearwardly from the frame and havingrearwardly and downwardly' curved perforated ends, a cle'vis looselysupported in each perforation, a smoothing blade secured to the clevisesand normally in dragging relation to the ground,

said smoothing blade, when raised to a horizontal'gposition, beingslidable forwardly to, move the clevises into engagement with theundersides of the brackets in front of the perforations, and therebyto'support the V smoothing blade out of contact with the ground.

' 2. In a device of the character described,

the combination of a frame having earth Work1ng elements mountedtherein, brackets Qating with said clamping member, brackets,

clevises and frame to secure said blade out of contact with the ground.

the combination of a frame having earth working elements mountedtherein,lbrackets secured to and extending rearwardly from the frame andhaving rearwardlyand downwardly curved perforated ends," a clevis loosey supported in each perforation, a

smoothing blade secured to the clevises and normally in draggingrelation to the ground, said smoothing blade, when raised to ahorizontal position, being slida'ble forwardly to move theclevises intoengagement with the under sides of the brackets in front of theperforations and thereby to support the smoothing blade in substantiallyhorizontal position out of contact with the ground, a

clamping member having spaced arms adapted to embrace the smoothingblade,

and means to secure said clamping member to the frame in such a manneras to hold said smoothing blade in its horizontalforward position out ofcontact with the ground.

- In testimony, that I claim the foregoing as my own, I have heretoaffixed my sign ture. 1 I

ADOLPH FROMHERZ 0. In a device of the character described,

